Feb 25, 2019 - 01:50 AM
Thank you for contacting Biobidet Support.
There is no difference between the carbon and iodine filters in regards to effectivness. These only difference is the threading as each filter (carbon or iodine) is manufactured for either the Premire models such as the BB2000 (iodine) or the USPA6800 Luxury (carbon).
If you have additional questions, please contact us futher as firstname.lastname@example.org
Source: Carbon VS Iodine Filters